1. Channels and valley networks;Baker,1992
2. Volcanism on Mars;Carr;J. Geophys. Res.,1973
3. Martian impact craters and emplacement of ejecta by surface flow;Carr;J. Geophys. Res.,1977
4. Geologic Maps of Science Study Site 1A, East Mangala Valles, Mars;Chapman;U.S. Geol. Surv. Misc. Invest. Ser. Map I-1962, scale 1: 500,000,1989
5. NASA Mars project: Evolution of climate and atmosphere;Clifford;EOS (Trans. Am. Geophys. Union),1988